Cylindrical wall stsucttjbe such as a silo



D. A. SECOR. CYLINDRICAI. WALL STRUCTURE, SUCH AS A SILO. APPLICATION FILED 0m. 18. 1915.

l ,1 95,277. Patented Aug. 22, 1916.

2 SHEETS-SHEET I- v -2 1 ET I INVENTOR. WITNE 1 Delbert A. ,S'acar ATTORNEYS.

D. A. SECOR.

CYLINDRICAL WALL STRUCTURE, SUCH AS A SILO.

APPLICATION FILED OCT-18,1915.

1 1 95,277. Patented A11 22, 1916.

2 SHEETS-SHEET 2.

1N VEN TOR. Delbert A. Secor A TTORNE YS.

ATE

DELBER'I A. SECOR, OF CASSOPOLIS, MICHIGAN, ASSIGNOR OF ONE-HALF T0 JOHN SCHMIDT, 0F DOWAGIAO, MICHIGAN.

CYLINDRICAL WALL STRUCTURE SUCH AS A SILO.

To all whom it may concern:

Be itknown that I, DELBERT A. Snoon, a citizen of the United States, residing at Cassopolis, county of Cass, State of Michigan, have invented certain new and useful Improvements in Cylindrical Wall Structures, such as Silos, of which the following isa specification.

This invention relates to improvements in cylindrical wall structures, such as silos. The main objects of my invention are: First, to provide an improved cylindrical wall structure'adapted for silos and similar structures in which the blocks are effectively interlocked and are all effectively engaged by the encircling hoops. Second, to provide an improved cylindrical wall structure having a series of door openings, one above the other, separated only by relatively narrow horizontal members in which the parts, even at the door openings, are thoroughly interlocked and supported.

I Further objects, and objects relating to structural details, will definitely appear from the detailed description to follow.

I accomplish the objects of my invention by the devices and means described in the following specification.

The invention is clearly defined and pointed out in the claims.

A structure which is a preferred embodiment of my invention is clearly illustrated in the accompanying drawing, forming a part of this specification, in which:

Figure I is a front elevation of a silo embodying the features of my invention. Fig. II is a detail inside elevation showing the arrangement "of the door casing and jamb blocksin the wall. Fig. III is an'en larged detail horizontal section on a line corresponding to line 33 of Fig. I.- Fig. IV is a detail vertical section on a line corresponding to line 4- of Fig. 1, showing the arrangement of the doors in their frames or casings. Fig. V is a detail vertical sec tion on a line corresponding to line 5-5 of Fig. I, showing the interlocking ribs and grooves of the blocks or staves. Fig. VI is a front perspective view of one of the casing blocks. Fig. VII is a front perspective view of one of a pair of jamb blocks. Fig. VIII is a front perspective view of the other of a pair of jamb blocks. Fig. IX is Specification of Letters Patent.

Patented Aug. 22, 1916.

Application filed. October is, 1915. serial'ivms'asso.

a detail end view of the jamb block shown in Fig. VIII. Fig. X is a detail end view of the jamb block shown in Fig. VII.

In the drawing similar reference charactersrefer to similar parts throughoutthe several views, and the sectional views are taken looking in the direction of the little arrows at the ends of the section lines.

Referringto the-drawings, 1 represents a concrete foundation for a silo. The blocks or staves are preferably formed of concrete or artificial stone. The wall is preferably begun and finished with half blocks or staves 2. I use the term blocks herein although the blocks are relatively long in proportion to their width and are commonly designated as staves by the trade.

The wall blocks 3 are provided with central recesses 4 in their ends forming pairs of interlocking end projections 5 ateach end. The sides 6 of these recesses diverge outwardly. The blocks are preferably curved in cross section. One edge of each block is provided with a rib or tongue 7, while the other is provided with a corresponding groove 8, so that when the blocks are laid in the walls these ribs and grooves engage, as is shown in Fig. III. One end of each block is provided-with a tongue or rib 9 while the other is provided with a complementary groovelO adapted to coact with the tongues and grooves of the blocks of adjacent courses.

The blocks 3 are laid in courses with their meeting interlock projections fitting recesses of the blocks of adjacentfcourses and interlocking with the interlock projections thereof,-so that the interlock projections of each course are interlocked with the interlock projections of the course above and below, each block constituting a tie member for the four blocks with which its ends abut. The tongues or ribs of one block fit the grooves of the abutting block, so that the wall blocks are interlocked throughout their length as well as at their ends, the end grooves and tongues being interlocked as well as the end inter-lock projections. The grooves and ribs, in addition to their value in supporting. the blocks in alinement, are of value in forming an air-tight wall, which is required in satisfactory silo construction. A series of doors, one above the other, are

provided by laying casing blocks 11 in alternate courses or the wall blocks. These casing blocks are provided with ribs 12 on one edge coacting with the grooves of the adjacent wall blocks of the courses and with grooves 13 on the opposite edge coacting with the rib of the adjacent block of the course. Jamb blocks l t and 15 are laid in the courses alternately with the casing blocks. These j amb blocks are very similar in shape to the regular wall blocks, being provided with end recesses 4 forming interlock projections 5 and 5 The interlock projections 5 at the inner edges of the jamb blocks are interlocked with the interlock projections of the wall blocks abutting their ends. The'interlock projections 5 are somewhat shorter than the interlock projections 5 and coact with complementary recesses and projections 16 and 17 at'the edges of the casing blocks 11. This brings the horizontal members 18 of the casing blocks 11- into alinement with the interlock projections of the wall blocks and also brings the horizontal members 18 into position, so that they lap the ends of the jamb blocks and constitute cross members for the wall course in which the jamb blocks are laid as well as cross members for the wall course in which the casing blocks are laid. The casing blocks "and the jamb blocks are so disposed that the door openings of the casing blocks 19 and the door openings 20 between the casing blocks are of the same size so that the doors 21 may be interchanged. The meeting parts of the casing and jamb blocks are provided with coacting ribs 22 and 23. The shoulder portions 2d of the casing blocks, which engage the. inner edges of the jamb blocks, are provided with ribs 25 and grooves 26 coacting with corresponding ribs and grooves 2'? and 2-8, respectively, on the jamb blocks 14 and 15.

The edges of the door openings 19 are rabbeted at 29 to receive the doors 21. jamb blocks are rabbeted at 30 to provide door receiving recesses while the upper edge of the top cross member and the lower edge of the bottom cross member of the casing blocks are rabbeted at 31, thus providing continuous rabbets or recesses for the alternate doors. The doors are retained by bars 32 engaged behind suitable keepers 33. This detail of securing the doors forms no part of my present invention.

The encircling hoops 34 are disposed across the interlocked end projections of the blocks and the door and. jamb blocks and across the horizontal members or top and bottom members-of the casing blocks, and the hoops are disposed so that all. the blocks are effectively engagedby thehoops. By

this arrangement the blocks are interlocked at the door opening as well as in the wall structure proper, thus providing a Wall that The cannot collapse and is self-sustaining, even without hoops, as the'parts are so thoroughly and completely interlocked;

The structure illustrated is provided with a conical roof 35 which, however, forms no part of my present invention.

I have illustrated and described my improved wall structure as I. have embodied thesame in silos for which it is particularly adapted. The blocks or staves are, as stated, interlockedthroughoutso that it is quite impossible for them to'become displaced on accountot' wind strains or settling or ordinary racking strains: A further advantage is that the joints between the blocks so i are substantiallyairtight, which is a feature of great advantage'in silo structures.

Hav ng thus described my invention, What 'I- claim as new and desire to secure by Let ters Patent, is: V V

l 1. A cylindrical wall structure of the class described comprising wall blocks having spaced interlockprojections at each end, said blocks being laid in courses tobreakend joints with the, blocks of adjacent courses and with their interlock projections interlocked with an interlock projection of each block of the adjacent courses with which they abut, casing blocks laid inalternate courses of said wall blocksand having door openings therein, said casing blocks having end interlock projections adjacent their. side edges, j amb blocks laid in said Wall courses alternately with said casing blocks and having spaced interlock projections at each end interlocked with'interlock projections of said casing blocks and'wall blocks abutting said casing blocks, the horizontalmembers of said casing blocks constituting cross members between the ends of said jamb blocks, and encircling hoops disposed acrossthe said interlock projections of. said blocks and across the horizontal pieces of' said. casing blocks. 1

2. A wall structure of the class described comprising wall blocks having spaced interlock projections, at each end, said blocks being laid in courses to break end joints with the blocks of adjacent courses and with their interlock projections interlocked with an interlock projeetionof each; block of the adj acent courses with which they abut, casing blocks laid in alternate courses, of said wall blocks and having door openings therein, said casing blocks having end interlock projections adjacent their side edges, jamb blocks. laid in. saidwall courses alternately with said casing blocks and having spaced interlock projections at each v end interlocked with interlock projections of said casing blocks andend wall blocks. abutting. said casing blocks, the horizontal membersfof aid casing, blocks constituting cross members between the ends of saidjamb blocks.

3; A cylindrical wall structure of the class 4. A cylindrical Wall structure of the class described comprising a series of courses of blocks having interlocking ends in combination with frame-like door casing blocks laid Copies of this patent may be obtained for in alternating courses in said well, said casing blocks having door openings therein, the spaces between the casing blocks also constituting door openings, the ends of said casing blocks being shouldered to abut with the ends of blocks of the adjacent courses, and encircling hoops disposed across the interlocking ends of said courses of said blocks and the ends of said casing blocks.

In Witness whereof, I have hereunto set my hand and seal in the presence of two Witnesses.

DELBERT A. SECOR.

Witnesses:

CoRA SoA'rTEReooD, J. W. SCATTERGOOD.

flve cents each, by addressing the Commissioner of Yatents, Washington, I). O 

